Abstract: A method, system and apparatus for transmit spectral shaping for reducing distortion in a receiver are disclosed. According to one aspect, a method in a network node includes determining a spectral shaping filter for each of a plurality of sub-bands, each sub-band of the plurality of sub-bands being within a band that includes a carrier of a set of carriers, the spectral shaping filter for a sub-band being based at least in part on an intermodulation distortion (IMD) that overlaps with at least one sub-band of the plurality of sub-bands. The method also includes applying the spectral shaping filters to the sub-bands of the plurality of sub-bands.

Abstract: A method by a network function of a wireless communication system includes receiving structured non-tabular data relating to the wireless communication system, wherein the structured non-tabular data includes network topology data in graph format. The structured non-tabular data is converted into tabular data. Converting the structured non-tabular data into tabular data includes identifying a baseline object of a graph of the network topology data and generating a row of tabular data for each baseline object in the graph of the network topology data. The method further includes storing the tabular data in a data store for access by consumer applications in the wireless communication system.

Abstract: Systems and methods for identifying Passive Intermodulation (PIM) products are disclosed. Some embodiments use RAN Performance Measurement (PM) counters, of actual DL Traffic Load to correlate with UL noise and interference counters. By using counters, the DL traffic is correlated to the increase in noise and interference in order to determine which DL carrier combinations are causing degradation to which UL carriers. In this way, aggressor-victim grouping can be identified through normal downlink traffic load with uplink interference to identify passive intermodulation products. This can be done for all aggressor-victim groups within a radio base station site or cluster of sites. Also, some embodiments enable estimating the maximum PIM interference created by the aggressor carriers. This helps operators to quantify the impact of PIM and can enable them to take counter measures. These embodiments are Radio Access Technology (RAT) agnostic and operator agnostic for the aggressors within a site.

Abstract: The present invention discloses schemes to perform load control taking uplink BLER statistics into account. An uplink load control method and apparatus are provided in a wireless communication system. The uplink load control method comprises estimating uplink load budget in a cell of the wireless communication system; determining whether the cell is over-loaded based on Block Error Rate (BLER) statistics of non-Guarded Bit Rate (non-GBR) users in the cell and/or Fast Congestion Control (FCC) action statistics in the cell; decreasing the uplink load budget if it is determined that the cell is over-loaded; and increasing the uplink load budget if it is determined that the cell is not over-loaded. Preferably, increasing or decreasing of the uplink load budget is based on the BLER stastics BLERstatistic of targeted users by FCC.

Abstract: A controlling node (210) for UEs (115) in a cell in a communications system (200), arranged to generate (255) and transmit (230, 235) control commands to the UEs regarding their output power level, and to generate those control commands using either at least a first or a second power control scheme. In embodiments, the first power control scheme is a signal quality based power control scheme and the second power control scheme is a signal strength based power control scheme. In embodiments, the controlling node (210) is arranged to receive (230, 240) from a network controlling node (205) information regarding the capabilities of at least one other controlling node (220) in the cellular communications system (200) with respect to which power control scheme or schemes that the other controlling node (220) is arranged to use.

Abstract: Methods and devices for determining an available load in a cell of a cellular radio system are provided where the determination of the available load is made in response to an estimated inter cell interference load. An estimated inter cell interference is determined. The inter cell interference change events are monitored by determining when a User Equipment changes serving cell or when the User Equipment adds or removes a cell to the active set of the User Equipment. The determined inter cell interference is adjusted by an estimated load caused by the User Equipment causing an inter cell interference change event, and the available load is determined in response to the adjusted inter cell interference. The method can continuously update inter cell interference. Moreover, the update can be made fast and thereby allow an improved estimation of the available cell load.

Abstract: It is presented a method for selecting an output stream for bits of a bit set. The method comprises the steps of: obtaining indicators of how much transmission power is allowed to be used; calculating a maximum number of bits that can be provided to each one of the two output streams; determining which one of the two output streams is to be a primary output stream and which one of the two output streams is to be the secondary output stream. The primary output stream is then filled first and any surplus is provided to the secondary output stream. A corresponding user equipment, computer program and computer program product are also presented.

Abstract: Methods and devices to dynamically determine suitable cell-specific RoT limits are provided. The suitable cell-specific RoT limits can advantageously be set both with respect to a short time scale and a long time scale In accordance with some embodiments the long term time scale operation is based on UE measurements representative for the intended coverage area of the cell. In accordance with some embodiments the short term time scale operation is based on UE measurements from active User Equipments only. Furthermore, also receiver capabilities of and cell isolation to neighboring base stations can be considered in the long time scale operation.

Abstract: In a method and a device for setting the Transport Format Combination size step in a scheduler of a cellular radio system to be used by a user equipment transmitting data to a radio base station of the cellular radio system, the Transport Format Combination size step is set as a function of a number of pre-defined cell and/or user conditions. This will increase the user bit Crate at low load. Specifically, the time to reach a high bitrate in low load situations is reduced. This leads to enhanced user experience for bursty services such as World Wide Web (WWW) services.

Abstract: In a cellular radio system the power control status of a mobile station is used in the base stations to generate power control commands. Hereby a radio base station can select a power control method that is optimal for the situation at hand. This is obtained by communicating power control status to base stations or deriving power control status in a radio base station. The radio base station is adapted to select power control method based on the power control status. Thus, a base station can select the most suitable power control improvement method, even during soft handover, thereby making make use of the advantages of different types of power control improvement methods.

Abstract: The present invention discloses schemes to perform load control taking uplink BLER statistics into account. An uplink load control method and apparatus are provided in a wireless communication system. The uplink load control method comprises estimating uplink load budget in a cell of the wireless communication system; determining whether the cell is over-loaded based on Block Error Rate (BLER) statistics of non-Guarded Bit Rate (non-GBR) users in the cell and/or Fast Congestion Control (FCC) action statistics in the cell; decreasing the uplink load budget if it is determined that the cell is over-loaded; and increasing the uplink load budget if it is determined that the cell is not over-loaded. Preferably, increasing or decreasing of the uplink load budget is based on the BLER stastics BLERstatistic of targeted users by FCC.

Abstract: A power control applied to a radio network controller (40) when a user equipment (300) is in communication with a serving radio base station (10) and at least one other radio base station (20) involves the radio network controller (40) providing a quality representation of an uplink control channel (12) from the user equipment (300) to the serving radio base station (10). The radio network controller (40) generates an updated power quality target for a reference control channel based on the quality representation and transmits the updated power quality target to at least one of the serving radio base station (10) and the at least one other radio base station (20). Alternatively, the radio network controller (40) generates an updated power offset for the uplink control channel (12) relative a reference control channel based on the quality representation and transmits the updated power offset to the user equipment (300).

Abstract: In a cellular radio system, the number of TDM users per cell is limited. The cellular radio system can be a WCDMA system and in particular a WCDMA system employing an Enhanced Uplink (EUL). Other users in the cell are scheduled using CDM scheduling.

Abstract: Random access coverage is assured while at the same time supporting high uplink data rates in a same service area served by a base station. A set of radio resources are shared by multiple mobile terminals for transmitting uplink to the base station including requests for access to service from the base station and transmissions for active connections with the base station. A first repeating time period and a second different repeating time period are defined. Uplink transmission grants are scheduled for active connections that permit use of a greater amount of the radio resources during the first repeating time period. Uplink transmission grants are also scheduled for active connections that permit use of a smaller amount of those resources during the second repeating time period. At least some random access requests to the base station are controlled to occur only during the second repeating time period.

Abstract: Methods and devices to dynamically determine suitable cell-specific RoT limits are provided. The suitable cell-specific RoT limits can advantageously be set both with respect to a short time scale and a long time scale In accordance with some embodiments the long term time scale operation is based on UE measurements representative for the intended coverage area of the cell. In accordance with some embodiments the short term time scale operation is based on UE measurements from active User Equipments only. Furthermore, also receiver capabilities of and cell isolation to neighboring base stations can be considered in the long time scale operation.

Abstract: A controlling node (210) for UEs (115) in a cell in a communications system (200), arranged to generate (255) and transmit (230, 235) control commands to the UEs regarding their output power level, and to generate those control commands using either at least a first or a second power control scheme. In embodiments, the first power control scheme is a signal quality based power control scheme and the second power control scheme is a signal strength based power control scheme. In embodiments, the controlling node (210) is arranged to receive (230, 240) from a network controlling node (205) information regarding the capabilities of at least one other controlling node (220) in the cellular communications system (200) with respect to which power control scheme or schemes that the other controlling node (220) is arranged to use.

Abstract: Methods and devices for determining an available load in a cell of a cellular radio system are provided where the determination of the available load is made in response to an estimated inter cell interference load. An estimated inter cell interference is determined. The inter cell interference change events are monitored by determining when a User Equipment changes serving cell or when the User Equipment adds or removes a cell to the active set of the User Equipment. The determined inter cell interference is adjusted by an estimated load caused by the User Equipment causing an inter cell interference change event, and the available load is determined in response to the adjusted inter cell interference. The method can continuously update inter cell interference. Moreover, the update can be made fast and thereby allow an improved estimation of the available cell load.

Abstract: A method for implementing power loop control at a RBS controlled by an RNC includes receiving an SIR target at the RBS which is determined by the RNC for a mobile station in communication with the RBS. In a first mode, one or more transmit power control commands are generated at the RBS for issuance to the mobile station based on the SIR target received from the RNC. In a second mode, one or more transmit power control commands are generated at the RBS for issuance to the mobile station based on an SIR target determined by the RBS for the mobile station instead of the SIR target received from the RNC. Also in the second mode, artificial mobile station connection quality information is reported from the RBS to the RNC so that the SIR target determined by the RNC is adjusted in accordance with the SIR target determined by the RBS.

Abstract: In a method and a device for setting the Transport Format Combination size step in a scheduler of a cellular radio system to be used by a user equipment transmitting data to a radio base station of the cellular radio system, the Transport Format Combination size step is set as a function of a number of pre-defined cell and/or user conditions. This will increase the user bit Crate at low load. Specifically, the time to reach a high bitrate in low load situations is reduced. This leads to enhanced user experience for bursty services such as World Wide Web (WWW) services.

Abstract: It is presented a method for selecting an output stream for bits of a bit set. The method comprises the steps of: obtaining indicators of how much transmission power is allowed to be used; calculating a maximum number of bits that can be provided to each one of the two output streams; determining which one of the two output streams is to be a primary output stream and which one of the two output streams is to be the secondary output stream. The primary output stream is then filled first and any surplus is provided to the secondary output stream. A corresponding user equipment, computer program and computer program product are also presented.